3 假設 P
(A) = 0.4, P(B|A) = 0.35, P(AUB) = 0.69 , 則P
(B) =？
(A)0.14
(B)0.43
(C)0.75
(D)0.59 

答案：登入後查看
統計： A(6), B(93), C(4), D(3), E(0) #710089

詳解 (共 1 筆)

#1406711
P(A∩B)=P(A)*P(B|A)=0.4*0.35=0.14
P(AUB)=P(A)+P(B)-P(A∩B)
0.69=0.4+P(B)-0.14
P(B)=0.69-0.4+0.14=0.43
4
0